Rose-engine.



Patented lune I8, |901. F. SCHIRMER.V

BOSE ENGINE.

5 sheets-snm l.

(Application led July 22, 1898.)

(Ilo lodel.)

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F. SCHIRMER.

Bose ENGINE. l A 1i t' mamy 22,1898.) PP chou e y 5 Sheets-Sheet 2.

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No. 676,6u.

Patented lune I8, |90l; F. SCHIRMER.

ROSE ENGINE.

(Application filed July 22, 1898.)

S'Sheets-Sheet 3.

(No Model.)

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F. SCHIRMER.-

B 0S E E N G l N E. (Application tiled July 22, 1898.)

5 Sheets-Sheet 4v'.

(No Model.)

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No. 676,6n.-

F. SCHIRMER.

BOSE ENGINE.

(Application led July 22, 1898.)

Patented lune I8. 190|.

5 sham-sheet 5.

(Nu Model.)

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UNITED STATES PATENT EEICE.

FELIX SCHIRMER, OF LEIPSIC, GERMANY.

ROSE-ENGINE.

SPECIFCATION forming part Of Lettersrateht No. 676,61 1, dated June 18, 1901.

' Application tiled d'uly 22, 1898. Serial No. 686.622. (No model.)

To @ZZ whom, it may concern:

Be it known that I, FELIX SCHIRMER, a subject of the Kingof Saxony, and a resident of Leipsic, Kingdom of Saxony, Germany, have invented certain new and useful 4Improvements in Rose-Engines, of which thefollowing is a full, clear, and exact description.

The present invention relates to engravingmachines or roseengines; and it consists in the details of construction hereinafter set forth, and particularly pointed out in the claims.

In order to render the present specication more easily intelligible, reference is had to the accompanying drawings, in Vwhich similar reference characters denote similar parts throughout the several views.'

Figure 1 is a side elevation of the machine; Fig. 2, a front elevation; Figs. 3 to 5, detail views of the table-supporting bridge; Fig. 6, a plan of the tool-driving mechanism. Fig. 7 is a sectional view taken on line R R-of Fig. 1; Fig. 8, a sectionon'line S S, Fig. 1; Fig. 9, a sectional elevation of an auxiliary rectangular table; Fig. 10, a plan of Fig. 9; Fig. 1l, a section on line M M, Fig. 9; and Fig. 12, a section on line N N, Fig. 9.

According to the present invention two horizontally-disposed rotary disks are provided with adjustable crank-pins, upon which is adj ustably mounted a table connecting the two disks. At about the center of this table the carrier-plate is mounted, having its spindle extending down through the same, andmeans are provided for rotating the same or for arresting it in any desired position. Thus if one end of the table, hereinafter called the bridge, is clamped to one of the two disks, but free to turn on its disk-pin, and the pin of the other disk is clamped to its disk at a diiferent distance from its center to that of the first disk-pin and is allowed to engage the other end of the bridge it will be obvious that a blank supported on a rotary table mounted at the center, or thereabout, of the disk and capable of gradual or stepwise rotation will be capable of being so moved as to produce almost any variety of curves when moved under a vertically-rotating tool.

According to one modification of the machine the sum of the movements of the bridgecarrying disk is imparted to a work-carrier manner, is provided with wormsfv and o', the

former serving by means of the worin-Wheel w to rotate the crank-pin disk K. The rear worm oengages the worm-wheel w and drives the shaft h, which carries said worm-wheel. The shaft b is mounted in a suitable standard y and is provided with a keyway at its end toreceive suitable gear. From the shaft b is driven the parallel shaft c by means of the said gear and an interchangeable gear, (not showm) which may be mounted on the adjustable4 arm c in the known manner. The crankpin disk K2 is driven from the shaft c by means of the bevel-gears r fr', Fig. S. Each `disk K2 is provided with an adjustable crankpin Z and Z2, respectively, each pin being mounted in a dovetail slot of itsrespective disk and adjustable therein, said pins each engaging a sliding block d and d2. On the disks K and K2 is supported the bridge-piece c, while the sliding blocks which run in guideways of the said bridge e transmit the motion of the pins Z' and Z2 to the said bridge in such manner that the motion of the center point of the bridge is the result of the combined movements of the two crank-pins Z and Z2. The said pins are provided above the bridge with disks or Washers 'n2 and nuts to prevent the bridge from tipping. The washers are tightened up against the sleeves n, encircling the pins, so as to clamp the disks in position fast enough to allow the bridge to move under them without having any play. The blocks d d2 are provided with small steel wedges 1, Figs. 3, 4, and 5, pivotally supported at 2, which by means of screws 3 having eccentric heads may be forced or clamped against the downwardly extending lateral anges of the bridge e, and thus clamp the said bridge to the one or other, or both, 'of the disks K and K2.

In producing rose designs the shaft t may be loose and disengaged from the retaining-y IOC) pin or screw-spindle Z when one end of the bridge e is clamped to either Kor K2; but in producing some classes of ornamentations hereinafter set forth more particularly with reference to Figs. 9 to l2 the spindle t must be clamped. In working the rose patterns as at present described the shaftt must be loose and the bridge e clamped to one or other of the disks K K2.

lf it is required to prevent the bridge from moving in its longitudinal direction with the pins of the disks K and K2, a screw-spindle e, mounted in a cross-piece :r at the front of the machine,is screwed inwardly until its end engages in a corresponding recess in the end of the shaft t, so that the said shaft is restrained from swinging around the axis of the stub-shaft s and the movement of the said shaft and with it the bridge ein the direction of the longitudinal axis of the bridge e is prevented, the bridge being thus constrained to move in the direction of the longitudinal axis of the said shaft 't only. A pin g extends through the center, or thereabout, of the bridge e and is provided with a head at the upper part thereof, Fig. l, a registering disk h being rigidly attached to the said head, and the circular work-supporting table rl is mounted on a conical pin integral and concentric with the pin g, said disk being free to turn on said pin and being prevented from removal from the same by means of a head. The table may be coupled to the registering disk by means of a lever-arm h', having a downwardly-extending laterally-adjustable pin h2, adapted to be held in the recess of the disk h by means of a spring h5 and adjustable in said recess by hand. The table e' is provided with T-shaped grooves, by means of which the blank may be attached thereto in the usual manner, the said table being preferably used for making rosette-like ornaments.y The table 11 is rotated by means of the shaft t, which in its turn is driven by the shaft b by means of interchangeable gears. (Not shown.) By means of a swinging support M, mounted-outfile shaft Z and provided with two suitably-mounted gears, the gearingbetween shafts Z2 and Z may be altered at will.v Between the gears m and n' a pair of gears n3 are mounted on a suitable segment fnwhich may be adjusted by means of the rod and handle N, so as to cause the shaft o to 'rotate in either direction at will, Figs. l and 8. A bevel-gear q, fast on the shaft 0, gears with the lower part of a double bevelge'ar r2, which runs loosely on a stub-shaft s, mou-nted in the frame-plate T. The stubshaft s is provided with a transverse boring above r2, in which the end of the shaft t carryin'g the bevel-wheel r3, gearing with T2, is mounted. A bevel-gear u, gearing with u', is mounted to slide on the shaft t along a keyway provided thereon, the bevel u 'being mounted on the lower part of the pin g of the bridge e. A yoke P keeps the two bevels u and u in gearing while they are moving in the direction of the longitudinal axis of the shaft t, said yoke engaging the lower end of g.

At right angles to the bridge c and a suitble distance from the same is mounted the head-stock A, carrying the tool, (shaping, grinding, or drawing instrument,) as shown at Figs. l, 2, 6, and 7. AThe spindle of the tool (indicated by la) is driven by means of a cord from the disk B, mounted underneath the table, the said cord passing over guiderolls B and B2 and having a tension or tightening roll 13S-mounted on the adj utable upper part of the stock, so that the tension of the cord remains' the same whatever the position of the upper part of the stock. The latter is provided with a short rack p, which meshes with a gear R', mounted on the horizontal spindle E, the end of which is squared to receive a hand crank-lever or the like.

Thus by turning the crank-spindle E the upper part of the stock may be adj usted to and from the work-table. A screw (not shown) in the cheek-of the guideway of the upper part may be provided to clamp the latter in any desired position- A short connectingrod D, Fig. l, encircles the pin g, connecting the said pin to a slide D', guided in the stock. A short rack is attached to the slide D', in

which a gear R meshes, which imparts the movement of the said slide to a shaft F, mounted in the lower part of the stock. In one piece with or rigidly connected to the shaft F is a crank-pin disk C, and the pin of the said disk is connected7 by means of a rod Gr, with a pair of levers G2, pivotally mounted at the upper part of the stock, so that these levers willparticipate in the swinging motion of the crank-pin G, which is adjustable in a radial groove (not shown) of the cra-nkdisk. .A link G3 carries a balanced pressurelever G4, which is coupled to therspindle 7c by means of a universal joint. The front end of G4, which is provided with a handle, rests on an adjustable support G5 at the front part of the stock, Figs. l and 2. Thus the foreand-aft movement of the pin g will cause a rising and sinking of the spindle 7e and accordingly a more or less marked impression of the tool on the blank. If the pin G is ad- IOO IIO

justed to the center of the disk C, the spindle ment of the pin g toward the stock A, which would produce a constantly-darkening heavy line, should represent the shaded side of the design. Y

In order to produce straight or undulating profiles, the device illustrated in Figs. 9 to l2 is employed. In this case the `bridge e, with disks K K2, still controls the movement of the pin g; but the latter i's provided with an adjustable pin and means for imparting its motion to parallel bars, and also means are provided for imparting a gradual longitudinal progressive motion to the said parallelbar device. In guides O, fast on the frameplate close to the disks K and K2 and just above the bridge e, a slide H moves, having an upper shoe H', which is guided by means of the bell-crank levers Q Q', pivotally mounted on the slide H, said levers allowing the said shoe a movement of a swinging nature around their pivots. The free ends of the levers Q Q' are coupled by means of a rod S. This forms a parallel-motion device, which constrains H' to move transversely to H, while at the same time Q and Q with H' serve as a pitman to communicate to H the longitudinal component of the motion of the crank-pin Z3. The upper side of H forms a guideway on which the work-table may slide parallel to the guides O O, and thus it will be seen that any point on the table has both a rotary and longitudinal motion in addition to any transverse movement communicated through g and its crank-disk K3. In this case, instead of the pin g, which is preferably employed for rosette patterns, acting direct on the blank a crank-pin disk Ks is fixed to its upper end and rotated, as previously explained, by means of the gear u. This disk is provided with a radial dovetail guideway, in which a small crank-pin Z3 is adjustable, said pin passing through an opening in the slide H into the shoe H', thus causing the latter to follow its motion. A gear 2:' extends into the shoe H', which gear meshes with a second gear z2, having advantageously forty-four teeth. This gear is mounted on a vertical pivot 25, mounted fast in the shoe H'. The boss of z2 is prolonged upwardly above the pivot z5 and serves to receive interchangeable gears, which may be keyed thereto and which transmit the motion of .z2 to a gear z3,moi1nted in an adjustable bearing-arm lt' of the shoe H'. This latter gear meshes with a rack a4 of the Work-table t', which slides ou guideways of the shoe H', thus causing the table z" to perform a continuous longitudinal motion independently of the circular movements of the crank-pin Z3 of the disk K3. This motion may be gradually backward or forward, according to the position of the reversinggears, between m and n'. The upper surface of the table t" is provided with grooves by means of which the blank is fixed to the same. The upward and downward movement of the spindle 7c is effected by the connecting-rod Gr being attached to the disk K' in a similar manner to that described with reference to Fig. 1,the said rod being connected to the slide D'.

The parts may be differently arranged according to requirement; but the gist of the invention consists in the construction of the whole machine in such manner that the movements of the table by means of the disks K' K2 and the crank-pins Z' Z2 as imparted to the bridge combine with the rotary movement of the table on its own axis and with the movements of the spindle to attain a great variety of adjustable movements.

I claim as my inventionl. In an engraving-machine the combination of two disks mounted at suitable distance apart and having each a radially-adjustable pin thereon, said disks rotating in the horizontal plane, and means for effecting such rotation a bridge to extend across said disks and a rotary table mounted at about the center of said bridge between the two disks, means for clamping one or other end of the said bridge to one or other of the said diskpins, means for allowing either of the pins to move freely and actuate the bridge when not coupled thereto, and a rotary engraving-tool mounted above the table substantially as described.

2. The combination of a pair of disks and means for rotating the same in a horizontal plane in either direction, radially-adjustable crank-pins to said disks a bridge extending across the said disks and adjustable on the said'disk-pins, a table mounted about centrally on the said bridge and movable therewith and means for rotating the said table during its movement with the bridge, an engraving or cutting tool mounted vertically above said table and means for rotating the same substantially as described.

3. The combination of a pair of horizontallyrotatable disks having each a radially-adj ustable pin on its upper surface, a bridge to extend over said disks and supported on said pins, so that the same may be free to move on one or both of the said pins, a Work-table mounted on the said bridge and means for rotating the same, means for adjusting the same by hand on its rotary spindle during the rotation of the latter, means for reversing the direction of rotation of either of the disks and of the table, a vertically-supported tool to rotate above said table and means for rotating the same substantially as described.

4. The combination of a pair of disks to rotate in a horizontal plane and means for rotating either of the said disks in either direction independently of the rotation of the other, radially-adjustable pins on said disks,

Aa bridge to extend across both disks and supported on said pins and for coupling the bridge to one or other of the said disks, a work-table mounted on the said bridge intermediate of the said disks, a tool vertically mounted above said table and means for rotating the same, and means in connection with the said bridge for increasing the pressure on the said tool at the f0re-and-aft1notion of the said bridge substantially as described.

5. The combination of a pair of horizontallydisposed disks and means for rotating the same at equal or varying speeds simultaneously, radially-adjustable pins in said disks and a bridge extending across both disks, a work-table supported on said bridge between IOO lIO

said disks, and means for rotating the sameVy Aduring the various movements Aof the said bridge, a tool vertically disposed above said table and means in connection therewith for changing the vertical position of said tool according to the fore-and-aft movement of the tally-disposed `disk thereon With adjustable 6. The combination of a pair of horizontally` disposed disks and means for rotating they same as specified, radially-adjustable pins said bridge substantially as described.

one on each of said disks and a bridge extending across both the said disks and means for adjusting the saine on the said pins, a table mounted above said bridge and means vfor restraining the same to partake of the resultant transverse movement only of the saidV disk-pins, a central rotary spindle extending through said table, and a crank-pin mounted thereon above the table, an upper table to slide on said bridge-table and parallel motion to constrain the said upper table to move parallelly on said bridge table, means for coupling said upper table to the said central spindle crank-pin, and means for gradually moving said upper table in a longitudinal direction on the said bridge-table substantially as described.

7. The combination of a pair othorizontallydisposed disks and means for rotating the saine as specified, a radially-adjustable pin ,on each disk and la bridge extending across said pins and means for securing to and adjusting the said bridge on said pins, a longitudinally-guided table mounted above said disks and a central spindle having a horizonpin therein to extend through a corresponding orilice in said longitudinally-.guided table, an upper table to yslideon said lower table and a crank-pin on the central spindle to move said upper table, means for imparting parallel motion to said upper table when opL erated by the said crank-pin and means in connection Withthe said rotary disk to gradually move said upper table alongthe said lower table in either longitudinal direction, a rotary tool vertically disposed above the said table and means for varying the vertical position .of `Said tool according to the .foreand-aft movements'of the Abridgein the mauner and forthe purpose substantially asdescribed.

In witness whereof I have hereunto set my hand in presence of two witnesses.

FELIX SGHIRMER.

Witnesses: A

HERM. SACK,

RUDOLPH FRICKE. 

